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Audi A6 / S6 / RS6 vs. Audi A8 / S8 Fuel Economy (g/100m)

Chart is based on 229 fuel economy reports for the Audi A6 / S6 / RS6 and 28 fuel economy reports for the Audi A8 / S8.

Audi A6 / S6 / RS6 g/100m

Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2018 3.3 MPG Highway Percentage 55 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2016 3.2 MPG Highway Percentage 85 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2014 3.7 MPG Highway Percentage 40 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2013 5.8 MPG Highway Percentage 0 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2013 4.5 MPG Highway Percentage 65 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2012 3.1 MPG Highway Percentage 90 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2011 4.2 MPG Highway Percentage 15 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2010 4.0 MPG Highway Percentage 30 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2010 11.3 MPG Highway Percentage 65 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2008 5.1 MPG Highway Percentage 40 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2007 5.0 MPG Highway Percentage 49 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2007 8.3 MPG Highway Percentage 15 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2007 4.9 MPG Highway Percentage 65 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2007 4.0 MPG Highway Percentage 55 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006.5 1.7 MPG Highway Percentage 95 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006 9.9 MPG Highway Percentage 44 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006 6.7 MPG Highway Percentage 63 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006 3.5 MPG Highway Percentage 30 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2006 5.8 MPG Highway Percentage 62 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2005 7.0 MPG Highway Percentage 67 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2005 8.2 MPG Highway Percentage 54 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2004 5.5 MPG Highway Percentage 25 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2004 7.6 MPG Highway Percentage 54 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2004 5.0 MPG Highway Percentage 95 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 6.3 MPG Highway Percentage 30 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 4.9 MPG Highway Percentage 72 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 4.5 MPG Highway Percentage 50 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 4.6 MPG Highway Percentage 76 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 14.9 MPG Highway Percentage 65 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2003 20.1 MPG Highway Percentage 40 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 4.7 MPG Highway Percentage 60 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 6.2 MPG Highway Percentage 44 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 5.4 MPG Highway Percentage 43 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 5.2 MPG Highway Percentage 45 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 4.2 MPG Highway Percentage 40 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2002 5.4 MPG Highway Percentage 10 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2001 4.7 MPG Highway Percentage 8 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2001 4.8 MPG Highway Percentage 55 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2001 4.7 MPG Highway Percentage 33 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2000 5.0 MPG Highway Percentage 50 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2000 26.6 MPG Highway Percentage 60 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2000 6.1 MPG Highway Percentage 30 percent Audi A6 / S6 / RS6 Audi A6 / S6 / RS6 2000 4.8 MPG Highway Percentage 33 percent
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd g/100m
2018 4dr Sedan supercharged 340hp 3.0L V6
8-speed shiftable automatic AWD		 flat med hvy 5 5 35 55 65 3.3  
2016 4dr Sedan supercharged 333hp 3.0L V6
8-speed shiftable automatic AWD		 flat med none 0 10 5 85 80 3.2  
2014 4dr Sedan supercharged 310hp 3.0L V6
8-speed shiftable automatic AWD		 flat med hvy 0 10 50 40 80 3.7  
2013 4dr Sedan turbocharged 420hp 4.0L V8
7-speed automated manual AWD		 flat med light 0 100 0 0 0 5.8  
2013 4dr Sedan supercharged 310hp 3.0L V6
8-speed shiftable automatic AWD		 hills lead none 0 10 25 65 70 4.5  
2012 4dr Sedan supercharged 310hp 3.0L V6
8-speed shiftable automatic AWD		 flat med none 10 0 0 90 65 3.1  
2011 4dr Sedan supercharged 300hp 3.0L V6
6-speed shiftable automatic AWD		 flat med hvy 30 45 10 15 70 4.2  
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2010 4dr Wagon supercharged 300hp 3.0L V6
6-speed shiftable automatic AWD		 flat med light 10 20 40 30 75 4.0  
2010 4dr Sedan supercharged 300hp 3.0L V6
6-speed shiftable automatic AWD		 flat med light 9 6 20 65 88 11.3  
2008 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 flat med none 15 20 25 40 65 5.1  
2007 4dr Wagon 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 flat med light 0 11 40 49 75 5.0  
2007 4dr Sedan 435-horsepower 5.2L V10
6-speed shiftable automatic AWD		 flat med light 30 50 5 15 70 8.3  
2007 4dr Sedan 350-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med light 10 5 20 65 70 4.9  
2007 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 hills light light 3 10 34 55 63 4.0  
2006.5 4dr Sedan turbocharged 140hp 2.0L I4 Diesel
6-speed manual FWD		 flat v.lt none 5 0 0 95 60 1.7  
2006 4dr Wagon 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 flat med light 16 17 22 44 78 9.9  
2006 4dr Sedan 335-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med none 1 2 34 63 82 6.7  
2006 4dr Sedan 255-horsepower 3.1L V6
7-speed shiftable CVT FWD		 flat med hvy 30 20 20 30 80 3.5  
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 flat med light 8 14 16 62 77 5.8  
2005 4dr Sedan 335-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med light 1 4 28 67 77 7.0  
2005 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 flat med light 11 13 23 54 81 8.2  
2004 4dr Sedan 300-horsepower 4.2L V8
5-speed shiftable automatic AWD		 flat med none 25 25 25 25 75 5.5  
2004 4dr Sedan 265-horsepower 2.7L V6
5-speed shiftable automatic AWD		 flat med light 4 25 17 54 70 7.6  
2004 4dr Sedan 220-horsepower 3.0L V6
5-speed shiftable automatic AWD		 flat med none 5 0 0 95 68 5.0  
2003 4dr Wagon 340-horsepower 4.2L V8
5-speed shiftable automatic AWD		 flat lead hvy 20 20 30 30 80 6.3  
2003 4dr Sedan turbocharged 450hp 4.2L V8
5-speed shiftable automatic AWD		 flat med light 2 5 22 72 75 4.9  
2003 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD		 flat med none 0 20 30 50 75 4.5  
2003 4dr Sedan turbocharged 250hp 2.7L V6
5-speed shiftable automatic AWD		 flat light light 5 7 12 76 70 4.6  
2003 4dr Sedan 300-horsepower 4.2L V8
5-speed shiftable automatic AWD		 hills med light 13 8 15 65 90 14.9  
2003 4dr Sedan 220-horsepower 3.0L V6
5-speed shiftable automatic AWD		 flat light light 16 13 30 40 88 20.1  
2002 4dr Wagon 220-horsepower 3.0L V6
5-speed shiftable automatic AWD		 flat light light 15 15 10 60 60 4.7  
2002 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD		 flat med none 35 14 9 44 75 6.2  
2002 4dr Sedan turbocharged 250hp 2.7L V6
5-speed shiftable automatic AWD		 flat med light 12 32 13 43 66 5.4  
2002 4dr Sedan 300-horsepower 4.2L V8
5-speed shiftable automatic AWD		 flat light light 6 20 29 45 62 5.2  
2002 4dr Sedan 220-horsepower 3.0L V6
6-speed shiftable CVT FWD		 flat med light 10 40 10 40 70 4.2  
2002 4dr Sedan 220-horsepower 3.0L V6
5-speed shiftable automatic AWD		 flat light hvy 10 30 50 10 65 5.4  
2001 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD		 flat med light 3 33 58 8 75 4.7  
2001 4dr Sedan turbocharged 250hp 2.7L V6
5-speed shiftable automatic AWD		 flat med none 4 12 29 55 71 4.8  
2001 4dr Sedan 200-horsepower 2.8L V6
5-speed shiftable automatic AWD		 hills med hvy 10 30 28 33 65 4.7  
2000 4dr Wagon 200-horsepower 2.8L V6
5-speed shiftable automatic AWD		 hills med hvy 10 30 10 50 65 5.0  
2000 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD		 flat med none 10 20 10 60 120 26.6  
2000 4dr Sedan 200-horsepower 2.8L V6
5-speed shiftable automatic FWD		 hills light light 45 20 5 30 60 6.1  
2000 4dr Sedan 200-horsepower 2.8L V6
5-speed shiftable automatic AWD		 hills med none 8 23 35 33 72 4.8  

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This page shows only averages. See all the Audi A6 / S6 / RS6 fuel economy data.

Audi A8 / S8 g/100m

Audi A8 / S8 Audi A8 / S8 2014 5.7 MPG Highway Percentage 22 percent Audi A8 / S8 Audi A8 / S8 2012 5.6 MPG Highway Percentage 50 percent Audi A8 / S8 Audi A8 / S8 2011 4.9 MPG Highway Percentage 36 percent Audi A8 / S8 Audi A8 / S8 2009 5.0 MPG Highway Percentage 100 percent Audi A8 / S8 Audi A8 / S8 2008 5.2 MPG Highway Percentage 35 percent Audi A8 / S8 Audi A8 / S8 2008 6.7 MPG Highway Percentage 45 percent Audi A8 / S8 Audi A8 / S8 2007 3.7 MPG Highway Percentage 80 percent Audi A8 / S8 Audi A8 / S8 2007 18.5 MPG Highway Percentage 29 percent Audi A8 / S8 Audi A8 / S8 2005 5.6 MPG Highway Percentage 38 percent Audi A8 / S8 Audi A8 / S8 2005 5.5 MPG Highway Percentage 52 percent Audi A8 / S8 Audi A8 / S8 2004 9.8 MPG Highway Percentage 66 percent Audi A8 / S8 Audi A8 / S8 2001 6.1 MPG Highway Percentage 13 percent Audi A8 / S8 Audi A8 / S8 2000 5.2 MPG Highway Percentage 67 percent
Year Body/Powertrain flat, hilly, or mountainousLand driving style: very light to "lead foot"Foot A/C use: none to heavyA/C constant stop and goTraf % many stops per mileCity % stop every mile or twoSub % fairly steady speedHwy % Hwy Spd g/100m
2014 4dr Sedan, ext. turbocharged 420hp 4.0L V8
8-speed shiftable automatic AWD		 flat med light 17 0 61 22 75 5.7  
2012 4dr Sedan, ext. 372-horsepower 4.2L V8
8-speed shiftable automatic AWD		 flat med hvy 0 50 0 50 65 5.6  
2011 4dr Sedan 372-horsepower 4.2L V8
8-speed shiftable automatic AWD		 flat med hvy 12 14 39 36 68 4.9  
2009 4dr Sedan 350-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat light none 0 0 0 100 75 5.0  
2008 4dr Sedan, ext. 350-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med none 5 30 30 35 70 5.2  
2008 4dr Sedan 350-horsepower 4.2L V8
6-speed shiftable automatic AWD		 hills lead hvy 5 40 10 45 70 6.7  
2007 4dr Sedan, ext. 350-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med hvy 5 5 10 80 75 3.7  
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2007 4dr Sedan 350-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med none 7 34 30 29 88 18.5  
2005 4dr Sedan, ext. 330-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat lead hvy 23 15 25 38 60 5.6  
2005 4dr Sedan 330-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med light 8 31 10 52 68 5.5  
2004 4dr Sedan, ext. 330-horsepower 4.2L V8
6-speed shiftable automatic AWD		 flat med light 8 11 15 66 74 9.8  
2001 4dr Sedan 360-horsepower 4.2L V8
5-speed shiftable automatic AWD		 flat med light 38 38 13 13 60 6.1  
2000 4dr Sedan 310-horsepower 4.2L V8
5-speed shiftable automatic AWD		 flat light light 12 8 14 67 60 5.2  

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This page shows only averages. See all the Audi A8 / S8 fuel economy data.

Audi A6 / S6 / RS6 vs. Audi A8 / S8 Fuel Economy (g/100m)

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the Audi A6 / S6 / RS6 and Audi A8 / S8's where a car was driven. So you can get an idea of their real-world g/100m based on how and where you drive a car.

See TrueDelta's information for all Sedans and Wagons.
See TrueDelta's information for all Audi models.

What Our Members Are Saying about the Real Gas Mileage of the Audi A6 / S6 / RS6

Audi A6 / S6 / RS6 Real Gas Mileage: Pros
YearBody/PowertrainComment
2008 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 It is @ least 4 mpg better hwy & city see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 It's hard to imagine such a powerful luxury car can get such great gas mileage. On a recent trip to Montreal I calculated my fuel economy to be somewhere in the 27mpg range....incredible! see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 better then 28 mpg on highway due to transmission gearing see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 Despite the performance of the A6 3.2 it delivers great mpg for such a large car. It excels on the open road. With cruise it is possible to achieve a range of 650+ miles on a tankful. see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 With the FSI and V6, I regularly see 27 mpg in city. And arround 30-32 mpg highway (no A/C on, and cruising at 80 mph). see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 21=22 mpg in cit/commute/highway driving -- pretty good for a large luxury car that weighs 4000+ pounds. see full Audi A6 / S6 / RS6 review
2004 4dr Sedan 220-horsepower 3.0L V6
6-speed shiftable CVT FWD		 Typically 22-24 in-town and 29-31 on the road. Excellent economy for car size and level of comfort. see full Audi A6 / S6 / RS6 review
Audi A6 / S6 / RS6 Real Gas Mileage: Cons
YearBody/PowertrainComment
2006 4dr Wagon 255-horsepower 3.1L V6
6-speed shiftable automatic AWD		 Poor relative to power see full Audi A6 / S6 / RS6 review
2006 4dr Sedan 335-horsepower 4.2L V8
6-speed shiftable automatic AWD		 this is not a car to be used as a city daily driver -- the best mpg you will get in all city driving is 12mpg see full Audi A6 / S6 / RS6 review
2002 4dr Sedan turbocharged 250hp 2.7L V6
6-speed manual AWD		 For a car that requires 91+ octane, it would be nice if it got better gas mileage in city driving (around 16-18 mpg). The mileage on the highway is much better (up to 26 mpg). see full Audi A6 / S6 / RS6 review
 

TrueDelta Reviews the Real Gas Mileage of the Audi A8 / S8

Audi A8 / S8 Real Gas Mileage: Pros
YearComment
2013 Fuel economy might seem an odd, "why to buy" for such a large, powerful car. But this large powerful car manages EPA ratings of 18 mpg city, 28 mpg highway, each one mpg better than the superceded V8. In suburban driving the trip computer typically reported averages in the low 20s, but as high as 25.5. We're a long way from large luxury sedans that had trouble cracking 18. The BMW is rated a bit higher, 19/28, but this is close enough to call it a draw. If you want even better fuel economy, Audi how also offers a 240-horsepower diesel with EPA ratings of 24/36. But the TDI is only available with the long wheelbase and will also cost you another $3,700. BMW offers no comparable car on this side of the Atlantic. see full Audi A8 / S8 review
 

What Our Members Are Saying about the Real Gas Mileage of the Audi A8 / S8

Audi A8 / S8 Real Gas Mileage: Pros
YearBody/PowertrainComment
2004 4dr Sedan, ext. 330-horsepower 4.2L V8
6-speed shiftable automatic AWD		 The Audi A8L is an interesting car if bought used. As it is a premium model, it is often bought on lease or by rich people. It is also all aluminium - when sold they are usually in great condition. The fuel economy is good for its size - about 12 miles a gallon city and 22 highway. For an 8 cylinder, all wheel drive performance car this is not bad. However high gas prices make it nota very economic choice for the gas version. With the introduction of the diesel version means used vehicles will come onto th eused market in about three years (2106). Fuel consumption will be better. see full Audi A8 / S8 review